“All I can say is that a week before the season began, a referee came to our training camp in Trigoria to explain how this technology works, how many monitors they have and the number of officials checking the footage,” Perotti told reporters.

“This was all created so they would not make mistakes, but they made a mistake anyway. I think there is a lot of work still to be done with this VAR system.

“Daniele De Rossi went over, as captain, to ask why the referee wasn’t checking the VAR. He replied that there was nothing in it.

“It was clearly a penalty, everyone saw it. They ended up giving a corner, but he never touched the ball.

“I hope someone will come out and explain why the penalty wasn’t given. I don’t understand why those watching the monitors didn’t see it.

“I don’t have much faith in VAR after this, because if we had scored that penalty, we’d have been 2-0 up and game over. I watched Genoa-Juventus earlier and the foul on me seemed clearer than either of those spot-kicks that were awarded.”

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